A gamma- and X-ray detector for cryogenic, high magnetic field applications
R. L. Cooper, R. Alarcon, M. J. Bales, C. D. Bass, E. J. Beise, H., Breuer, J. Byrne, T. E. Chupp, K. J. Coakley, M. S. Dewey, C. Fu, T. R., Gentile, H. P. Mumm, J. S. Nico, B. O'Neill, K. Pulliam, A. K. Thompson, and, F. E. Wietfeldt
TL;DR
This paper presents a specialized gamma- and X-ray detector designed for cryogenic, high magnetic field environments, capable of detecting photons from 0.2 keV to 1000 keV for neutron beta-decay experiments.
Contribution
It introduces a novel detector combining BGO crystals and APDs optimized for cryogenic and high magnetic field conditions, expanding detection capabilities.
Findings
Successful operation at cryogenic temperatures within a superconducting magnet
Detection of photons across a broad energy range from 0.2 keV to 1000 keV
Insights into APD performance at cryogenic temperatures.
Abstract
As part of an experiment to measure the spectrum of photons emitted in beta-decay of the free neutron, we developed and operated a detector consisting of 12 bismuth germanate (BGO) crystals coupled to avalanche photodiodes (APDs). The detector was operated near liquid nitrogen temperature in the bore of a superconducting magnet and registered photons with energies from 5 keV to 1000 keV. To enlarge the detection range, we also directly detected soft X-rays with energies between 0.2 keV and 20 keV with three large area APDs. The construction and operation of the detector is presented, as well as information on operation of APDs at cryogenic temperatures.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.